Files
gramps/gramps/plugins/gramplet/locations.py
2016-11-22 18:25:20 +00:00

315 lines
10 KiB
Python

# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2014-2016 Nick Hall
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
#-------------------------------------------------------------------------
#
# Gtk modules
#
#-------------------------------------------------------------------------
from gi.repository import Gtk
#-------------------------------------------------------------------------
#
# Gramps modules
#
#-------------------------------------------------------------------------
from gramps.gen.plug import Gramplet
from gramps.gui.dbguielement import DbGUIElement
from gramps.gui.editors import EditPlace
from gramps.gen.errors import WindowActiveError
from gramps.gui.listmodel import ListModel, NOSORT
from gramps.gen.datehandler import get_date
from gramps.gen.lib import Date
from gramps.gen.const import GRAMPS_LOCALE as glocale
_ = glocale.translation.gettext
#-------------------------------------------------------------------------
#
# Locations gramplet
#
#-------------------------------------------------------------------------
class Locations(Gramplet, DbGUIElement):
"""
Gramplet showing the locations of a place over time.
"""
def __init__(self, gui, nav_group=0):
Gramplet.__init__(self, gui, nav_group)
DbGUIElement.__init__(self, self.dbstate.db)
def init(self):
self.gui.WIDGET = self.build_gui()
self.gui.get_container_widget().remove(self.gui.textview)
self.gui.get_container_widget().add(self.gui.WIDGET)
self.gui.WIDGET.show()
def _connect_db_signals(self):
"""
called on init of DbGUIElement, connect to db as required.
"""
self.callman.register_callbacks({'place-update': self.changed})
self.callman.connect_all(keys=['place'])
def db_changed(self):
self.connect_signal('Place', self.update)
def changed(self, handle):
"""
Called when a registered place is updated.
"""
self.update()
def build_gui(self):
"""
Build the GUI interface.
"""
tip = _('Double-click on a row to edit the selected place.')
self.set_tooltip(tip)
top = Gtk.TreeView()
titles = [('', 0, 50),
(_('Name'), 1, 300),
(_('Type'), 2, 150),
(_('Date'), 5, 250),
(_('ID'), 4, 100),
('', NOSORT, 50)]
self.model = ListModel(top, titles, list_mode="tree",
event_func=self.edit_place)
return top
def active_changed(self, handle):
self.update()
def update_has_data(self):
active_handle = self.get_active('Place')
if active_handle:
active = self.dbstate.db.get_place_from_handle(active_handle)
self.set_has_data(self.get_has_data(active))
else:
self.set_has_data(False)
def get_has_data(self, place):
"""
Return True if the gramplet has data, else return False.
"""
pass
def main(self):
self.model.clear()
self.callman.unregister_all()
active_handle = self.get_active('Place')
if active_handle:
active = self.dbstate.db.get_place_from_handle(active_handle)
if active:
self.display_place(active, None, [active_handle], DateRange())
else:
self.set_has_data(False)
else:
self.set_has_data(False)
def display_place(self, place, node, visited, drange):
"""
Display the location hierarchy for the active place.
"""
pass
def add_place(self, placeref, place, node, visited, drange):
"""
Add a place to the model.
"""
place_date = get_date(placeref)
place_sort = '%012d' % placeref.get_date_object().get_sort_value()
place_name = place.get_name().get_value()
place_type = str(place.get_type())
place_id = place.get_gramps_id()
if drange.overlap:
place_date += ' *'
new_node = self.model.add([place.handle,
place_name,
place_type,
place_date,
place_id,
place_sort],
node=node)
self.display_place(place, new_node, visited + [place.handle], drange)
def edit_place(self, treeview):
"""
Edit the selected place.
"""
model, iter_ = treeview.get_selection().get_selected()
if iter_:
handle = model.get_value(iter_, 0)
place = self.dbstate.db.get_place_from_handle(handle)
try:
EditPlace(self.dbstate, self.uistate, [], place)
except WindowActiveError:
pass
#-------------------------------------------------------------------------
#
# EnclosedBy gramplet
#
#-------------------------------------------------------------------------
class EnclosedBy(Locations):
"""
Gramplet showing the locations enclosed by the active place.
"""
def display_place(self, place, node, visited, drange):
"""
Display the location hierarchy for the active place.
"""
self.callman.register_obj(place)
for placeref in place.get_placeref_list():
if placeref.ref in visited:
continue
dr2 = drange.intersect(placeref.date)
if dr2.is_empty():
continue
parent_place = self.dbstate.db.get_place_from_handle(placeref.ref)
self.add_place(placeref, parent_place, node, visited, dr2)
self.set_has_data(self.model.count > 0)
self.model.tree.expand_all()
def get_has_data(self, place):
"""
Return True if the gramplet has data, else return False.
"""
if place is None:
return False
if len(place.get_placeref_list()) > 0:
return True
return False
#-------------------------------------------------------------------------
#
# Encloses gramplet
#
#-------------------------------------------------------------------------
class Encloses(Locations):
"""
Gramplet showing the locations which the active place encloses.
"""
def display_place(self, place, node, visited, drange):
"""
Display the location hierarchy for the active place.
"""
self.callman.register_obj(place)
for link in self.dbstate.db.find_backlink_handles(
place.handle, include_classes=['Place']):
if link[1] in visited:
continue
child_place = self.dbstate.db.get_place_from_handle(link[1])
placeref = None
for placeref in child_place.get_placeref_list():
if placeref.ref == place.handle:
dr2 = drange.intersect(placeref.date)
if dr2.is_empty():
continue
self.add_place(placeref, child_place, node, visited, dr2)
self.set_has_data(self.model.count > 0)
self.model.tree.expand_all()
def get_has_data(self, place):
"""
Return True if the gramplet has data, else return False.
"""
if place is None:
return False
for link in self.dbstate.db.find_backlink_handles(
place.handle, include_classes=['Place']):
return True
return False
#-------------------------------------------------------------------------
#
# DateRange class
#
#-------------------------------------------------------------------------
class DateRange:
"""
A class that represents a date range.
"""
def __init__(self, source=None):
self.start = None
self.stop = None
self.overlap = False
if source:
self.start = source.start
self.stop = source.stop
self.overlap = source.overlap
def intersect(self, date):
"""
Return the intersection of the date range with a given Date object.
"""
result = DateRange(self)
start, stop = self.__get_sortvals(date)
if start is not None:
if self.start is None or start > self.start:
result.start = start
if stop is not None:
if self.stop is None or stop < self.stop:
result.stop = stop
result.overlap = False
if result.start is not None:
if start is None or start < result.start:
result.overlap = True
if result.stop is not None:
if stop is None or stop > result.stop:
result.overlap = True
return result
def is_empty(self):
"""
Return True if there are no dates in the range.
"""
if self.start is None or self.stop is None:
return False
return True if self.start > self.stop else False
def __get_sortvals(self, date):
"""
Get the sort values representing the start and end of a Date object.
"""
start = None
stop = None
if date.modifier == Date.MOD_NONE:
start = date.sortval
stop = date.sortval
elif date.modifier == Date.MOD_AFTER:
start = date.sortval
elif date.modifier == Date.MOD_BEFORE:
stop = date.sortval
elif date.is_compound():
date1, date2 = date.get_start_stop_range()
start = Date(*date1).sortval
stop = Date(*date2).sortval
return (start, stop)